Derating of Electronics

This course introduces the concepts surrounding part ratings and how to identify and determine the ratings of parts. You will learn how to read and analyze part datasheets and other technical documentation to extract the information necessary to make a decision on the part suitability in an application. The methods of determining derating conditions based on manufacturer-provided guidelines, industry requirements, standards, failure mechanisms, and other processes will be covered. A thorough review of the historic, current, and emergent derating guidelines and standards will be presented.

Outline:

1. Introduction
2. Part Ratings – thermal, electrical, environmental
3. Load stress interference -safety margin and loading roughness
4. Thermal rating details – recommended operating conditions and absolute maximum ratings
5. Review of part datasheet information and other sources of data
6. Selection of derating methods
   1. Manufacturer-provided guidelines
   2. Industry requirements
   3. Standards
   4. Failure mechanisms
   5. Other processes
7. Derating standards (including NASA, automotive, and US military)
   1. Historic
   2. Current
   3. Emergent
   4. Examples of derating: active, passive, electromechanical
8. Derating documentation
9. Implementation in organization
10. Cost of derating
11. Closure

Contact:
Dr. Diganta Das
Center for Advanced Life Cycle Engineering (CALCE)
301-405-7770 | diganta@umd.edu
University of Maryland
College Park, MD 20742